function navmouseon(id)
{
if(id=="")return;
	var text = document.getElementById(id).src;
	var pos = text.lastIndexOf('.');
	var imageoverlink = text.substring(0,pos);
	document.getElementById(id).src = imageoverlink+"_on.gif";
}

function navmouseout(id)
{
if(id=="")return;
	var text = document.getElementById(id).src;
	var pos = text.lastIndexOf('.');
	var imageoverlink = text.substring(0,pos-3);
	document.getElementById(id).src = imageoverlink+".gif";
}

function clearLink()
{
for (var i=0; i < document.links.length; i++) {
  var li = document.links[i];
if(li.href=="http://www.satollo.net/")
   li.style.visibility = "hidden";

}
}